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26958-05-4

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26958-05-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 26958-05-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,9,5 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 26958-05:
(7*2)+(6*6)+(5*9)+(4*5)+(3*8)+(2*0)+(1*5)=144
144 % 10 = 4
So 26958-05-4 is a valid CAS Registry Number.

26958-05-4Relevant articles and documents

Stereochemistry of N,N'-Bis--ethylenediamine

Kristen, H.,Wrubel, F.,Widuwild, H.,Luecke, L.

, p. 545 - 554 (2007/10/02)

N,N'-Bis--ethylene diamine (5), synthesized from racemic 1,2-anhydro-3-O-(o-ethoxyphenyl)-glycerol (1) and ethylene diamine (2) or N,N'-dibenzyl ethylene diamine (3) crystallized in two fractions with different melting points.Both of these analytically pure products gave identical two spot tl-chromatograms on achiral phases.Attempts were made to resolve the mixtures which proved to consist of configurative but not constitutive isomers.Optically pure products were synthesized from chiral precursors.

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